obviously a lot of people in the hospittl. >> kathleen cairns brings us the story of one of those people, trappee in a room, close to a killer. >> when a ggnman fired shoos on the eighth floor of johns hopkins hoopital, deb mckeever was down the hall. >> we kept the door shut. >> kind of loud noise. >> she was with her mother-in--aw. a patient. along with two therapists, and a nurse. craaked the door open aad then he shut the door and saiddthere is a shooter in the hall. get down. >> immediately, he got doww and started to put the chairs that, door. and he told us to get down. and be quiet. >> deb dialed 911. >> ssooting in thh hall way. >> happened so fast. i was pretty much scared to death. i thouggt, possibly, we were going to -- somebody would shoot us. >> heerd shooting, screaming and barricaded with a room. >> my worst fear is you think somebodyywill come down theehall building.3 gun. >> first thing i did is say, please, god keep us safe. i tooo my mothee-in-law's handú and i prayed for everybody that and i said, you know, prayed to god that he woull be with us. >> an hour later